procstat_args.c revision 174199
154134Swpaul/*- 254134Swpaul * Copyright (c) 2007 Robert N. M. Watson 354134Swpaul * All rights reserved. 454134Swpaul * 554134Swpaul * Redistribution and use in source and binary forms, with or without 654134Swpaul * modification, are permitted provided that the following conditions 754134Swpaul * are met: 854134Swpaul * 1. Redistributions of source code must retain the above copyright 954134Swpaul * notice, this list of conditions and the following disclaimer. 1054134Swpaul * 2. Redistributions in binary form must reproduce the above copyright 1154134Swpaul * notice, this list of conditions and the following disclaimer in the 1254134Swpaul * documentation and/or other materials provided with the distribution. 1354134Swpaul * 1454134Swpaul * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1554134Swpaul * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1654134Swpaul * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1754134Swpaul * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 1854134Swpaul * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 1954134Swpaul * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2054134Swpaul * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2154134Swpaul * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2254134Swpaul * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2354134Swpaul * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2454134Swpaul * SUCH DAMAGE. 2554134Swpaul * 2654134Swpaul * $FreeBSD: head/usr.bin/procstat/procstat_args.c 174199 2007-12-02 23:31:45Z rwatson $ 2754134Swpaul */ 2854134Swpaul 2954134Swpaul#include <sys/types.h> 3054134Swpaul#include <sys/sysctl.h> 3154134Swpaul 3254134Swpaul#include <err.h> 33119418Sobrien#include <errno.h> 34119418Sobrien#include <limits.h> 35119418Sobrien#include <stdio.h> 3654134Swpaul#include <stdlib.h> 3754134Swpaul#include <string.h> 38183505Smarius 39183505Smarius#include "procstat.h" 4054134Swpaul 4154134Swpaulstatic char args[ARG_MAX]; 4254134Swpaul 4354134Swpaulvoid 4454134Swpaulprocstat_args(pid_t pid, struct kinfo_proc *kipp) 4554134Swpaul{ 4654134Swpaul int error, name[4]; 4754134Swpaul size_t len; 4874914Sjhb char *cp; 4954134Swpaul 5067365Sjhb if (!hflag) 5154134Swpaul printf("%5s %-70s\n", "PID", "ARGS"); 5254134Swpaul 5354134Swpaul name[0] = CTL_KERN; 5454134Swpaul name[1] = KERN_PROC; 5554134Swpaul name[2] = KERN_PROC_ARGS; 5654134Swpaul name[3] = pid; 5754134Swpaul len = sizeof(args); 5854134Swpaul error = sysctl(name, 4, args, &len, NULL, 0); 59109514Sobrien if (error < 0 && errno != ESRCH) { 6054134Swpaul warn("sysctl: kern.proc.args: %d", pid); 6154134Swpaul return; 6254134Swpaul } 6354134Swpaul if (error < 0) 64151435Simp return; 6554134Swpaul if (len == 0 || strlen(args) == 0) { 6654134Swpaul strcpy(args, "-"); 6754134Swpaul len = strlen(args) + 1; 68105135Salfred } 69105135Salfred 7054134Swpaul printf("%5d ", pid); 7154134Swpaul for (cp = args; cp < args + len; cp += strlen(cp) + 1) 7254134Swpaul printf("%s%s", cp != args ? " " : "", cp); 7354134Swpaul printf("\n"); 7454134Swpaul} 7595722Sphk